Nasal cannula



FIG. 1 is a perspective view of the nasal cannula in accordance with our design;

FIG. 2 is a side view of the nasal cannula;

FIG. 3 is an exploded perspective view of the nasal cannula;

FIG. 4 is a front view of the nasal cannula; and,

FIG. 5 is an exploded side view of the nasal cannula. 

The ornamental design for a nasal cannula, as shown and described. 